Deburring 　　　Amazing deburring technique!

日本語

SEP technical data for burrs caused by machining

手　機械加工のバリ　技術資料

　　Fine burrs(less than 0.05), Burrs at cross hole, Improvement of inner diameter roughness, Enlargement of diameter, Abolition of inspection by magnifying glass test

手機械加工のバリ　VS　SEP処理

 SEP technical data for burrs caused by pressing

手　プレス加工バリ　技術資料

Fine burrs(less than 0.1), Hole in porous product, Improvement of ruggedness of shear plane or fracture surface, Improvement of roughness of tooth-shape by fine blanking, Burnishing of metal surface, Rinsing of contamination and dust, Deburring the product of which corner can't be rounded.r

手プレス加工バリ　VS　SEP処理
SEP technical data for burrs on fine pores

手　微細孔のバリ　技術資料

　　φ(less than 0.1mm), Polishing inner/outer circumference of product(whole surface), Polishing inlet/outlet/inside of fine pore, Enlargement(in micron unit), Surface roughness, Edge finishing, No unevenness of hole, Product which can't be applied to electrolytic polishing, Roundness

手微細穴のバリ　VS SEP

 SEP technical data for laser, wire, welding, etching products

手　レーザー・ワイヤー・溶接加工品、エッチング加工品　技術資料

　　Removing oxide film, Removing copper completely by W/C, Removing scorch by welding, Improvement of appearance, Removing burrs caused by etching, Removing surface roughness by etching

　レーザー・ワイヤー・溶接加工品、エッチング加工品　VS　SEP処理
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Burrs
Burrs are material which remains after processes, like grinding, polishing, pressing. Size and kind of burrs are various according to kind and performance of the machine.
　Burrs have some popular names like "grinding burrs", "polishing burrs" due to process, or "whisker burrs" due to its shape. Burrs are often harmful for products. It is said that there is the industry, whose complaints (about non-conforming items) after delivery are mostly caused by burrs. It is often said that even if burrs don't affect property of the products, they are disliked because worker may get injured at assembly.
Deburring process
There are many deburring processes and each process has both merits and demerits, just as our SEP Processing.
　Merits or demerits varies according to understanding. For example, if sharp edge is desired on deburring, the process with making round will be avoided. On the other hand if round edge is desired, the process will be accepted.
Satisfying you without showing it
Any plant tour is not allowed because the process method and process fluid are our own know-how of SEP Processing.
But visit to our company is quite welcome. We'll have discussion with you about purpose of process at the meeting room, and perform SEP process while you wait. After we get the result of processes, we'll fix the condition of process to meet your requirements, such as additional process, change of process fluid, etc.
About this selection of condition, some customer says to us in delight that "You may satisfy us without showing the process."
Short story
Our businessman may say that "SEP Processing is not almighty."
There are many processes as above, each process has both merits and demerits.
Merits or demerits varies according to understanding. For example, if sharp edge is desired on deburring, the process with making round will be avoided. On the other hand if round edge is desired, the process will be accepted.
So, we tell customer what we can do and can't do to meet customer's requirements.
What's SEP Processing
SEP Processing is a technique of deburring by chemically melting the product.
We immerse the product in special process fluid (SEP Processing fluid) which melt the product.
Features
*No physical external force is applied to the product because we only immerse it in fluid. So there is no deformation, dent, and distortion even if the product is thin plate.
*Surface roughness will be improved because fine crack and unevenness at surface will be removed and become flat.
(Some materials cause roughness of the surface.)
*As it is fluid, process will be performed uniformly. Inside the very fine pore can be polished if the fluid can infiltrate.
*SEP process also can apply to the place where can't reach tool because of deep hole or groove at complex shape.
*Dimension variation between before/after processes can be controlled in micron unit.
*No initial cost is needed because it is manufactured by commissioning (Process is performed at our company).
*As it is fluid process, SEP process is promising as an alternative technique of precision cleaning (removal of contamination, dust).
*It's easy to take steps for change of process because it's only to melt surface of metal.
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Explanation
*SEP Processing is a technique to remove burrs using chemical reaction by immersing the product in the special fluid.

*Because the base of burrs are deformed, burrs are affected by chemical reaction more than other parts.

*As burrs commonly have less thickness than its height, burrs will drop only by melting product surface as much as their thickness.

　　　　　　Sharper burrs will be removed faster than flat parts because amount of melt is larger.




Fine burrs removal process
Burrs removal model by SEP Processing

Before process
Burr is seen at bottom, left side of the product.		 Process 1
Burr gets slightly smaller.
Process 3
Burr completely drops from the product.
(Fine burrs were melted)		 Process 2
Burr is likely to drop from the product because joint becomes thin.
　
* Given the above, the important factor about removing burrs by SEP Process is not a height of burrs, but a thickness of joint.

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Request of trial production
Who What to do How long does it take
You 1. 　OR　Please let us know about purpose of process, material, size, numbers of product by mail. We'll consider carefully whether we can process, and get back to you soon.
 a few minutes
if we can process
Carrier
OR
You		 2.　　to　　Please send the product to us.
　　　		 1 day
SEP Co.,Ltd. 3.　　Select process condition
　　　　　　　　　　　　　　　　　　　　　　or
　　　　　　　　　　　　　　　　　　Examine mass-production method
　　　		 Approx.
3 - 7 days
SEP Co.,Ltd.
&
Carrier		 4. 　to　　　
　　　　　　Return the product applied SEP Process with picture data.		 1 day
You 5. 　　　
　　　　　　　　Please consider whether you go to mass-production or not, based on the processed product and picture data.		 ?
People all over the world 6. 　　
　　　　　　　　　
　　　　　　　Products applied SEP Process are used in various fields.
　　Add-on of trial
We have an epigram that "One trial is better than hearing!"
That is, we think one trial of our SEP Processing make you more understood than many explanations.
Please experience our technique by your product.
We are certain that our technique will please you.
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微細穴のバリ取り技術　SEP処理

　We are convinced that no other processing is superior to our SEP Processing in deburring at fine pores (holes).
Deburring fine pores may need capability and precision of machines. Clogging of dropped burrs and oversight of it may occur.
In the case of SEP Processing, there is no clogging because burrs are melted, and there is no oversight because process fluid spreads over the whole product. Surface where process fluid reaches is improved in roughness, that is, inner diameter of the product can be polished concurrently. (Some material will cause roughness of the surface. Please feel free to ask us.)
SEP Processing can perform washing at the same time because it is fluid process. Actually, there are some products applied SEP Processing on purpose of washing.
Please feel free to ask us if you are troubled with deburring fine pores!




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　Nowadays, machining process goes on to high precision and super refining because machine tools are remarkably innovated.
However burrs never disappear despite the innovation of machine tools. On the contrary, deburring becomes more difficult because burrs appear at complex part.
　It is no exaggeration to say that SEP Processing is a new technique like a dream because it enables deburring at such complex part owing to merit of fluid.
We are convinced that we can impress you if you ask us about deburring, improvement of surface roughness, precise washing, dimension control, etc.
Please feel free to ask us if you are troubled with deburring of machining.。




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プレス加工バリ取り技術　SEP処理
The most important advantage of pressing is that we can make the same products in short term by using die. But if burrs occur, inspection or rework shall be needed for most of products, or for all products at worst. And deburring at complexly bended or squeezed product is very hard job.
　SEP processing enables to remove burrs in short time and at low cost because it can process large amount at once. Even complex shape products are processable. As burrs caused by pressing will occur at the same place with approximately same size, almost all product can be assured by sampling inspection under certain process condition.
　As for performing SEP processing, it enables shear surface and fracture surface of pressing to be smooth, and it also enables shear surface roughness to be improved in fine blanking press. (Some material will cause roughness of the surface)
　Performing SEP processing enables the product to improve whole of its surface roughness, and enables to make gloss on its surface, so it can be used for instead of buffing for decoration. (Though its surface is less glossy than buffing, it can be applied to the product like that can't be polished by buffing)
　SEP processing can be used for the purpose of washing. As it is fluid process which doesn't cause contamination or dust, it can perform deburring and washing at the same time.
　Please feel the advantage of SEP Processing by your products.




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レーザー・ワイヤー・溶接加工品、エッチング加工品　SEP処理
For laser processing, SEP processing is used for the purpose of removing oxide film called as "burning", rather than deburring. Uses of the process depend on customers needs, for example some are used for only to improve the appearance and the other are used for pre-treatment of coating, etc.

　For wire processing, although there is a purpose of removing oxide film as above, the purpose of removing adhered copper caused by wire processing is increasing. It seems that a problem occurs if there is copper on die or jig at production line of a battery, etc.

　For welding, there are many cases to apply SEP processing to improve appearance.

　Surface of products after etching are sometimes rough in fact and there are some burrs at its edge. The number of cases of applying SEP processing to the product after etching is increasing.




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